GMC 1986 P-Truck Service Manual page 398

Figure 13—Installing The Wheel Bearing
• Bearing (15) into the axle (16) housing until
the tool bottoms against the tube. Refer to
figure 13.
2. Seal (14).
• Use J-21128 for
8 1
J-29713 for the
9 1
• Drive the tool into the bore until the seal (14)
bottoms flush with the end of the tube
(figure 14).
3. Axle shaft (12).
• Be careful not to damage the seal (14) when
inserting the axle shaft (
• Slide the axle shaft (12) into place allowing
the splines to engage the differential side
gear (F) figure 10.
/ -inch ring gear axle and
2
/ -inch ring gear axle.
2
).
1 2
REAR AXLE 4B-13
WITHOUT LOCKING DIFFERENTIAL
4. Lock (13).
• Lock on the button end of the axle shaft
( ), then push the shaft outward to seat the
1 2
lock in the counterbore of the differential
side gear.
5. Pinion shaft (B) figure
• Into the differential case (C) and pinion
gears.
• Align the hole in the pinion shaft (B) with the
screw hole in the differential case (C).
Thread the screw (A) in and tighten to 18
N m (25 ft. lbs.).
WITH LOCKING DIFFERENTIAL
4. Lock (13).
• Keep the pinion shaft (B) partially withdrawn
(figure 9).
• Place the lock (G) in the position shown in
figure .
10
• Carefully withdraw the axle shaft (12) until
the lock (13) clears the thrust block.
• Align the pinion shaft (B) hole with the screw
hole in the differential case (C) figure
5. Screw (A). Refer to figure
Tighten
• Screw (A) to 18 N m (25 ft. lbs.).
Gasket if used, otherwise RTV. Be sure sealing
surface is clean.
Carrier cover (19).
Bolts (18) and clip (17).
• Tighten bolts (18) in a crosswise pattern to
assure uniform draw on the gasket if used.
• Fill axle to filler plug hole level. Refer to
MAINTENANCE AND LUBRICATION (SEC.
OB) for proper lubricant.
9. Brake drum. Refer to BRAKES (SEC. 5).
10. Wheel and tire assembly. Refer to WHEELS AND
TIRES (SEC. 3E).
• Lower the vehicle and road test.
BRAKE BACKING PLATE
REPLACEMENT ( 8 V 2 - AND
9 1 /2-INCH RING GEAR—
SEMI-FLOATING AXLES)
• Raise the vehicle on a hoist.
«■+ Remove or Disconnect
. Wheel, tire and brake drum. Refer to BRAKES
1
(SEC. 5).
2. Axle shaft. Refer to " Axle Shaft Replacement"
earlier in this section.
3. Brake line from the cylinder inlet.
.
8
.
8
.
8